SAN FRANCISCO (Reuters) – Social and mobile game company King Digital Entertainment Plc reported lower-than-expected second-quarter revenue and profit on Tuesday, due to losses in its game titles, such as Candy Crush Saga. King shares slipped 22 percent in after-hours trading after closing at $18.20 on the New York Stock Exchange. The company, which went public in March, reported revenue of $594 million for the second quarter ended June 30 compared to $456 million in the year-ago period. This fell short of analysts expectations of $608.3 million, according to Thomson Reuters I/B/E/S. …